Sankey Diagram Example

Version 1

names <-c(
  "Primary Dx", #0
  "Rx1",        #1
  "Rx2",        #2
  "Dx2",        #3
  "Rx3",        #4
  "Rx4",        #5
  "Dx3",        #6
  "LTFU",       #7
  "Radiology",  #8
  "Dies")       #9

nodes = data.frame("name" = names)

links = as.data.frame(matrix(c(
  0,1,6861,
  1,2,5284,
  1,3,1111,
  1,4,349,
  1,5,117,
  2,6,3368,
  2,7,1916,
  3,8,590,
  3,9,1425,
  0,8,11979,
  8,4,1213,
  8,3,1474,
  8,5,393,
  #8,9, 1000, 
  3,1,570,
  8,6,1000),
  byrow = TRUE, ncol = 3))

names(links) = c("source", "target", "value")

sankeyNetwork(Links = links, Nodes = nodes,
              Source = "source", Target = "target",
              Value = "value", NodeID = "name",
              fontSize= 15, nodeWidth = 30)

Version 2

p <- plot_ly(
  type = "sankey",
  orientation = "h",
  
  node = list(
    label = names,
    #color = c("blue", "blue", "blue", "blue", "blue", "blue"),
    pad = 15,
    thickness = 20,
    line = list(
      color = "blue",
      width = 0.5
    )
  ),
  
  link = list(
    source = links$source,
    target = links$target,
    value =  links$value
  )
) %>% 
  layout(
    title = "Pt Journey",
    font = list(family="serif",
      size = 13
    )
  )

p